The efficacy of immune checkpoint blockade for melanoma in-transit with or without nodal metastases - A multicenter cohort study.

PURPOSE: Guidelines addressing melanoma in-transit metastasis (ITM) recommend immune checkpoint inhibitors (ICI) as a first-line treatment option, despite the fact that there are no efficacy data available from prospective trials for exclusively ITM disease. The study aims to analyze the outcome of patients with ITM treated with ICI based on data from a large cohort of patients treated at international referral clinics. METHODS: A multicenter retrospective cohort study of patients treated between January 2015 and December 2020 from Australia, Europe, and the USA, evaluating treatment with ICI for ITM with or without nodal involvement (AJCC8 N1c, N2c, and N3c) and without distant disease (M0). Treatment was with PD-1 inhibitor (nivolumab or pembrolizumab) and/or CTLA-4 inhibitor (ipilimumab). The response was evaluated according to the RECIST criteria modified for cutaneous lesions. RESULTS: A total of 287 patients from 21 institutions in eight countries were included. Immunotherapy was first-line treatment in 64 (22%) patients. PD-1 or CTLA-4 inhibitor monotherapy was given in 233 (81%) and 23 (8%) patients, respectively, while 31 (11%) received both in combination. The overall response rate was 56%, complete response (CR) rate was 36%, and progressive disease (PD) rate was 32%. Median PFS was ten months (95% CI 7.4-12.6 months) with a one-, two-, and five-year PFS rate of 48%, 33%, and 18%, respectively. Median MSS was not reached, and the one-, two-, and five-year MSS rates were 95%, 83%, and 71%, respectively. CONCLUSION: Systemic immunotherapy is an effective treatment for melanoma ITM. Future studies should evaluate the role of systemic immunotherapy in the context of multimodality therapy, including locoregional treatments such as surgery, intralesional therapy, and regional therapies.

Sex-Specific Outcomes Following Percutaneous Coronary Intervention Versus Coronary Artery Bypass Grafting for Left Main Disease: A Systematic Review and Meta-Analysis.

OBJECTIVE: To assess whether outcomes following percutaneous coronary intervention (PCI) versus coronary artery bypass grafting (CABG) for left main coronary artery (LMCA) disease differ between men and women. BACKGROUND: Current guidelines recommend either PCI or CABG for patients with unprotected LMCA disease and low-to-intermediate anatomical complexity. However, it is unclear whether these guidelines apply to women, who are underrepresented in clinical trials. METHODS: An electronic search was performed to identify studies reporting sex-specific outcomes after PCI versus CABG in patients with LMCA disease. Trial level hazard ratios (HRs) and 95% confidence intervals (CIs) were pooled by random-effects modelling. RESULTS: Eight (8) studies met inclusion criteria, comprising 13,066 patients (24.3% women). In both sexes, there was no difference between PCI and CABG with respect to the primary composite endpoint of death, myocardial infarction or stroke (HR in women: 1.03, 95% CI 0.76-1.40; HR in men: 1.04, 95% CI 0.92-1.17). However, both sexes were more likely to require repeat revascularisation after PCI. There was no interaction between sex and treatment effect for the primary composite endpoint nor for the individual outcomes of death, stroke and repeat revascularisation. However, in women the risk of myocardial infarction was higher after PCI compared with CABG (HR 1.84, 95% CI 1.06-3.18), with a trend toward the opposite in men (HR 0.78, 95% CI 0.54-1.13; p-interaction=0.01). CONCLUSION: Percutaneous coronary intervention and CABG have a comparable risk of the composite outcome of death, stroke or myocardial infarction in patients undergoing revascularisation for LMCA disease, with no significant interaction between sex and treatment effect.